President Donald Trump said Christians have “been horribly treated” by the refugee program and that it has been “almost impossible” for Syrian Christians to resettle in the U.S. But he provides no evidence that they’ve been discriminated against.

President Donald Trump defended his sweeping immigration policy by calling it “similar to what President Obama did in 2011 when he banned visas for refugees from Iraq for six months.” That’s a faulty comparison.

A common Republican falsehood — a claim that Syrian refugees being admitted to the U.S. are “unvetted” — is beginning to infect campaign TV ads. All refugees seeking to enter the U.S. go through a screening process, with special measures for those from Syria.